Error prediction of a 3-D mode matching technique for a simple geometry

It is important for radar cross section reduction and target identification to investigate electromagnetic scattering from various objects [1]. Our mode matching technique can analyze electromagnetic scattering problems with a high degree of accuracy [2]. In recent years, we have proposed an error prediction of our technique for two dimensional problems [3,4]. In this paper, the authors extend the idea to three dimensional problems and investigate computational accuracy of our technique. Compared with the reference solution, our prediction method for three dimensional problems is verified. Furthermore, we clarify the computational error due to the placement of sampling points.